import { ReactNode } from 'react';
export declare const ExchangeRateContext: import("react").Context<{
    satoshisPerUSD: number;
    eurPerUSD: number;
    gbpPerUSD: number;
    whenUpdated: any;
    isFiatPreferred: boolean;
    fiatFormatIndex: number;
    satsFormatIndex: number;
}>;
export declare const ExchangeRateContextProvider: React.FC<{
    children: ReactNode;
}>;